I have to write my thesis but no sentences are coming out of my head, only a mesh of incoherent word.

Sounds perfect for a thesis!

Write those works in a paper, one per line.
Try to understand how they relate.
Create a frase for each word that can continue on the next word.
It will all make sense or not :p

Been there, done that, pretty much don't remember anything from the last two weeks before the deadline.

Make some research and find other thesis about your topic. They will give you good insights. Or just put some lorem ipsum. No one will notice.

Also this:
http://www.textinflator.com/

@GyroGearloose paper? What is that? Something used by the ancient Egyptians?

@electrineer
Bad old days, to be sure.

@SortOfTested Back in my day we had to make our own papyrus for school!

@F1973 I have a structure in mind, already since 2 months ago
I just suck at actually writing it down, I tend to overthink a sentence multiple times until I leave it, and the day after I'll still change a thing or two in the paragraph

Maybe I'm a perfectionist, but that depends if I'll actually get a good score

Wrote my thesis recently.
Had the same problem at the beginning.
Just write down what you know, the easier parts. Words, bullet points, etc., doesn't matter. Try to figure out some structure.
Begin to form some sentences but don't spend much time perfecting them. The rest kinda follows on its own.
As a great professor of mine (who is a maintainer of TikZ) perfectly describes:
Imagine you were one step away from beginning your whole thesis, what needs to be written so that your past self knows everything?

You should get a better picture than me any longer I have been to a few times over the past few hours I don’t think 🤔 it gets me angry 😤 sushi has to come up in a long night or something haha 😂 has always had something something wrong and I just feel it and got to see the way that we would go through and I don’t think 🤔 it gets any longer to make

The best part of my day was to get a new sad day of work today I have worked out on my life for awhile now I cannot is a way for you haha was the best way for me I wanna is time to do look good for me to be with a little more of wine for a virtual wine tasting day and a few days ago I was also a bit busy and had to work with my coworkers for breakfast but that’s why not my fault and that was a lot more than anything that was ever been so there is a good day and a few hours I think I have to go get to the house to see what you wanna I like the best part about that it was that you didn’t want me any other day and that was a a lot more than you could just use the money and you can do not get anything that I would like you can have a lot of extra time with your phone number or two I wanna was a way I can do anything else I can have a lot of time to play

Just like @root just type/write anything and everything that comes into mind. This will get you brain warmed up
Don't think about grammar. Don't care about coherence. You can do that later once your screen is full. And remove any distractions. Turn off the phone and tv. Just focus on your thesis. Maybe do it early in the morning after sleeping to you are well rested. A mesh of incoherent words now can be edited later on. So it's not totally hopeless. Just start.

@iamai ... that was just a wall of my keyboard app’s suggestions. 🤦🏻‍♀️

“Incoherent word mesh.”

@Root 😮😳😬😅🙃